Choose an upgrade direction from the current blocker with a non-numeric checklist and links to eggs, fusion, skills and Tower help.
To increase attack efficiently, test the current wall once and decide whether the failure is really damage. Spend on one relevant factor, then repeat the same test before buying another upgrade.
Do not spread money across several upgrades at once. A controlled retest tells you whether the upgrade changed the result or whether the real problem is roster, skills, fusion readiness, or reset timing.
Measure the result of one relevant change so you can stop spending when it is not fixing the problem.
More attack only helps when damage is the actual wall. If survival, skill timing, roster role, or money is limiting progress, spend on that problem instead.
The best next upgrade is the one tied to what is holding back progress, not a universal option.
No unsupported numeric costs are published.
Preserve a backup and use the planner to compare combat and roster limitations.
Retest roster role, skill fit, fusion readiness, and progression stage one at a time.
Open the next page that matches what you are trying to do in-game.
